i18n: fix the LGTM review findings and tidy the branch texts

- i18n scanner: lastError sink, no false sinks on defaults and ternaries
- shared src/i18n/marker.js for modules that only mark strings
- wind field messages move to wind/fields.js; CITY_POIS imports from cityPois.js
- drop review IDs, change history and stale references from comments and docs

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/ui/templates/provider-settings.html

@@ -2,9 +2,8 @@
        both the chip and this dialog outright when /api/setup/status is not
        there to answer (prod builds, LAN visitors). Rows are rendered from
        that payload, so the key registry lives in src/keySetupCore.mjs alone. -->
-  <!-- Bottom-right corner, one HUD row: the POWER UP chip (while keys are
-       missing) and, in the very corner, the interface language picker that
-       src/ui/localePicker.js renders into #locale-picker. -->
+  <!-- Bottom-right HUD row: the POWER UP chip (while keys are missing) and
+       the language picker that src/ui/localePicker.js renders into #locale-picker. -->
   <div id="corner-actions">
     <button id="key-setup-chip" type="button" hidden aria-haspopup="dialog" aria-controls="key-setup">
       <span class="material-symbols-outlined" aria-hidden="true">bolt</span>